Home / 18,988.17-28,482.26-5,137.17

Finding the Fourth Proportional to 18,988.17, 28,482.26 and 5,137.17

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Solution

The fourth proportional to 18,988.17, 28,482.26 and 5,137.17 is: 7,705.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.17 : 28,482.26 = 5,137.17 : x
  2. Step 2: Convert to fraction form
    18,988.17/28,482.26 = 5,137.17/x
  3. Step 3: Cross multiply
    18,988.17x = 28,482.26 × 5,137.17
  4. Step 4: Simplify right side
    18,988.17x = 146,318,253.77
  5. Step 5: Solve for x
    x = 146,318,253.77/18,988.17
  6. Step 6: Final answer
    x = 7,705.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.